ul#topnav li .sub {position: absolute;  top: 50px; left: 0;background:#ffffff;float:left;

    /*--bottom right rounded corner--*/
    -moz-border-radius-bottomright: 5px;
    -khtml-border-radius-bottomright: 5px;
    -webkit-border-bottom-right-radius: 5px;

    /*--bottom left rounded corner--*/
    -moz-border-radius-bottomleft: 5px;
    -khtml-border-radius-bottomleft: 5px;
    -webkit-border-bottom-left-radius: 5px;
    display: none;
    z-index: 9999;}
ul#topnav li .sub dl{
    z-index: 9999;
    position: absolute;
    background:#ffffff;
    /* older safari/chrome browsers */
    -webkit-opacity: 0.9;
    /* netscape and older than firefox 0.9 */
    -moz-opacity: 0.9;
    /* safari 1.x (pre webkit!) 老式khtml内核的safari浏览器*/
    -khtml-opacity: 0.9;
    /* ie9 + etc...modern browsers */
    opacity: .9;
    /* ie 4-9 */
    filter:alpha(opacity=90);
    /*this works in ie 8 & 9 too*/
    -ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=90)";
    /*ie4-ie9*/
    filter:progid:DXImageTransform.Microsoft.Alpha(Opacity=90);}

ul#topnav .sub dl dd a {padding:0 38px;color:#333333; line-height:42px;font-size:14px;       width: 74.5px;}
ul#topnav .sub dl dd a:hover {padding:0 38px;
    color:#ffffff;
    background:#740000;}

.defaultButtonStyle{vertical-align:top;}
.defaultInputStyle{vertical-align:top;border:solid 1px #AFD5F5;height:17px;width:20px;}